JPS59218633A - Formation of lubricating film on magnetic disk surface - Google Patents
Formation of lubricating film on magnetic disk surfaceInfo
- Publication number
- JPS59218633A JPS59218633A JP58093556A JP9355683A JPS59218633A JP S59218633 A JPS59218633 A JP S59218633A JP 58093556 A JP58093556 A JP 58093556A JP 9355683 A JP9355683 A JP 9355683A JP S59218633 A JPS59218633 A JP S59218633A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- lubricant
- film
- vapor
- lubricating film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
（ａｌ 発明の技術分野
本発明は磁気ディスク表面の潤滑膜形成法に係り、特に
密封型磁気ディスク装置内の回転駆動機構に潤ｉｓ膜を
形成すべき磁気ディスクを装着した状態で、その表面に
潤滑膜を形成する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a method for forming a lubricant film on the surface of a magnetic disk, and particularly relates to a method for forming a lubricant film on the surface of a magnetic disk, and in particular, a method for mounting a magnetic disk on which a lubricant film is to be formed on a rotational drive mechanism in a sealed magnetic disk device. The present invention relates to a method for forming a lubricating film on the surface of the lubrication film.
（ｂｌ 技術の背景
近年、磁気ディスク装置においては、磁気ディスクにお
番〕る磁性膜の薄膜化、或いは磁気ヘッドの低浮」−化
等によって高記録密度化が進められている。この磁気ヘ
ッドの低浮上化、更に停止時は磁気ヘッドを磁気ディス
ク表面上に接触させた状態にしておき、回転速度の上昇
と共に磁気ヘッドを浮上させるようにした、所謂ＣＳ
Ｓ （ＣｏｎｔａｃｔＳｔａｒｔ ５ｔｏｐ）方式が広
く適用されるにつれて、回転起動・停止時の磁気ヘッド
と磁気ディスク表面とに接触摺動による摩耗、損傷等の
へソドクラノシュが発生し易くなり、これを防止する為
、磁気ディスク表面に潤滑剤を塗布するか、或いは潤滑
膜を被覆するなどの特別な表面処理を施すことが一般に
行われている。なおここで、前記磁気ディスク表面の「
表面」なる語は、磁気ヘッドが対向するディスクの面を
意味するものである。Background of the Technology In recent years, in magnetic disk drives, the recording density has been increased by thinning the magnetic film on the magnetic disk or by lowering the floating height of the magnetic head. In addition, the so-called CS is designed to keep the magnetic head in contact with the surface of the magnetic disk when the disk is stopped, and then levitate as the rotation speed increases.
As the S (Contact Start 5top) method is widely applied, wear and damage such as wear and damage due to contact sliding between the magnetic head and the magnetic disk surface when starting and stopping rotation are likely to occur.To prevent this, It is common practice to apply special surface treatment such as applying a lubricant to the surface of a magnetic disk or coating it with a lubricant film. In addition, here, "
The term "surface" refers to the surface of the disk that faces the magnetic head.
（Ｃ１従来技術と問題点
ところで上記した磁気ディスク表面に潤滑膜を形成する
従来の方法としては、例えばステアリン酸、又はパルミ
チン酸等をキシレンなどの溶剤で適当に熔解・希釈して
なる潤滑剤を磁気ディスク表面に、スビンコ−１・法、
或いはスプレー法等によって塗布した後、該潤滑塗布面
の余剰の潤滑剤を拭き取り具（Ｗｉｐｅｒ）により除去
して、均一な薄い所定膜厚の潤滑膜を形成するか、又は
蒸着法等により潤滑膜を形成している。(C1 Prior Art and Problems By the way, the conventional method of forming a lubricant film on the surface of a magnetic disk is to use a lubricant made by suitably dissolving and diluting stearic acid, palmitic acid, etc. with a solvent such as xylene. Subinko-1 method on the surface of the magnetic disk,
Alternatively, after applying the lubricant by a spray method or the like, excess lubricant on the surface to which the lubricant is applied is removed with a wiper to form a uniform thin lubricant film of a predetermined thickness, or a lubricant film is removed by a vapor deposition method or the like. is formed.
しかしながら、前者のスピンツー１−法、或いはスプレ
ー法等による潤滑膜の形成方法にあっては、所定膜厚の
均一な薄い潤滑膜を形成するのにかなりの熟練を必要と
し、信頼性が低い。又工数が多くコスト高になる欠点が
あった。一方接者の蒸着法等による潤滑膜の形成方法に
おいては、均一な所定膜厚の潤滑膜は得られるが、量産
性に乏しく、コスＩ・高になる欠点があった。However, the former method of forming a lubricant film, such as the spin-to-1 method or the spray method, requires considerable skill to form a uniform thin lubricant film of a predetermined thickness, and is therefore unreliable. Furthermore, there is a drawback that the number of man-hours is large and the cost is high. On the other hand, in the method of forming a lubricating film using a contact vapor deposition method, a lubricating film with a uniform predetermined thickness can be obtained, but it has the drawbacks of poor mass production and high cost I/I.
ｆｄ） 発明の目的
本発明は上記従来の欠点に鑑み、潤滑剤の蒸気が磁気デ
ィスク表面に吸着され、該吸着現象が磁気ディスクの高
速回転中に加速されて良好な潤滑膜を形成し得ることに
着目して、潤滑膜を形成すべき磁気ディスクを、密封型
磁気ディスク装置内の回転駆動機構に装着した状態で、
高速回転し、清浄に保たれた該磁気ディスク表面に、潤
滑剤の蒸気によって均一な膜厚を有する潤滑膜を低コス
トで、かつ容易に形成し得る新規な磁気ディスク面の潤
滑膜形成法を提供することを目的とするものである。fd) Purpose of the Invention In view of the above-mentioned conventional drawbacks, the present invention provides that lubricant vapor is adsorbed on the surface of a magnetic disk, and the adsorption phenomenon is accelerated during high-speed rotation of the magnetic disk to form a good lubricant film. By focusing on
A novel method for forming a lubricant film on the surface of a magnetic disk that can easily and at low cost form a lubricant film with a uniform thickness using lubricant vapor on the surface of the magnetic disk that rotates at high speed and is kept clean. The purpose is to provide
ｔｅｊ 発明の構成
そしてこの目的は本発明によれば、表面に潤滑膜を形成
すべき少なくとも一枚以上の磁気ディスクを有する磁気
ディスクユニットを、磁気ディスク装置の回転駆動機構
に装着して回転させた状態で、そのディスク収容室内に
潤滑膜形成用の潤滑剤の蒸気を充満させて、前記磁気デ
ィスク表面に潤滑膜を被着形成するようにしたことを特
徴とする磁気ディスク表面の潤滑膜形成法を提供するこ
とによって達成される。According to the present invention, a magnetic disk unit having at least one magnetic disk on which a lubricating film is to be formed is attached to a rotation drive mechanism of a magnetic disk device and rotated. A method for forming a lubricant film on the surface of a magnetic disk, characterized in that the disk storage chamber is filled with vapor of a lubricant for forming a lubricant film to form a lubricant film on the surface of the magnetic disk. This is achieved by providing
（ｆｌ 発明の実施例
以下図面を用いて本発明の実施例について詳細に説明す
る。(fl Embodiments of the Invention Below, embodiments of the present invention will be described in detail with reference to the drawings.
図面ば本発明に係る磁気ディスク表面の潤滑膜形成法の
一実施例を示す要部概略断面図であり、表面仕−にげ処
理がなされた４枚の磁気ディスク２を組み込んでなる磁
気ディスクユニット１が、密封型磁気ディスク装置４の
ディスク収容室５内の回転駆動機構６に装着されている
。該ディスクユニット１における各磁気ディスク２の支
持用スピンドルハウジング３の中心部及び各磁気ディス
ク２相互間対応部には、それぞれ相互に連通ずる通気穴
３ａと通気小孔３ｂが設けられている。従って、前記磁
気ディスクユニットｌを高速回転した際に生じる空気流
は図中の矢印で示すように、ディスク収容室５内の空間
よりベース部７に設りられた雰囲気流通穴７ａを経由し
てスピンドルハウジング３の中心通気穴３ａを通り、前
記通気小孔３ｂより各磁気ディスク２面上に流出するよ
うになる。一方前記ベース部７に設けられた雰囲気流通
穴７ａ内に、例えばステアリン酸等からなる潤滑剤８を
配置し、その近傍にフィルタ９を配設しておく。このよ
うな状態において前記回転駆動機構６を駆動して磁気デ
ィスクユニット１を、例えば３０００ ｒｐｍで３０〜
６０分回転させることにより、磁気ディスク２の風損に
よってディスク収容室５内の温度が呻５０℃（外気温度
が３０〜３５°Ｃの時）に上昇し、その温度の空気流に
よって前記潤滑剤８が加熱蒸発され、該潤滑剤８の蒸気
はフィルタ９を通して潤滑剤等の粉塵、／Ｉａ滑剤蒸気
の大粒子等が除去され、清浄な潤滑剤蒸気のみがディス
ク収容室５内に循環充満して回転中の各磁気ディスク２
表面に加速的に被着され、膜厚が約１００人の均一な潤
滑膜を容易に形成することができる。このようにして形
成された潤滑膜の摩擦係数としては、潤滑膜形成前の磁
気ディスク面の摩擦係数が０．４５以」二であったのに
対して、０．１５〜０．２３の良好な潤滑性を有してい
る。The drawing is a schematic sectional view of a main part showing an embodiment of the method for forming a lubricating film on the surface of a magnetic disk according to the present invention, and shows a magnetic disk unit incorporating four magnetic disks 2 that have been subjected to surface finishing treatment. 1 is attached to a rotational drive mechanism 6 in a disk storage chamber 5 of a sealed magnetic disk device 4. At the center of the spindle housing 3 for supporting each magnetic disk 2 in the disk unit 1 and at the corresponding portions between the magnetic disks 2, ventilation holes 3a and small ventilation holes 3b are provided, which communicate with each other. Therefore, the air flow generated when the magnetic disk unit l is rotated at high speed flows from the space inside the disk storage chamber 5 through the atmosphere circulation hole 7a provided in the base portion 7, as shown by the arrow in the figure. It passes through the center ventilation hole 3a of the spindle housing 3 and flows out from the small ventilation hole 3b onto the surface of each magnetic disk 2. On the other hand, a lubricant 8 made of, for example, stearic acid is disposed in the atmosphere circulation hole 7a provided in the base portion 7, and a filter 9 is disposed near the lubricant 8. In such a state, the rotational drive mechanism 6 is driven to rotate the magnetic disk unit 1 at, for example, 3000 rpm for 30 to 30 minutes.
By rotating for 60 minutes, the temperature inside the disk storage chamber 5 rises to 50°C (when the outside air temperature is 30 to 35°C) due to the windage loss of the magnetic disk 2, and the lubricant is 8 is heated and evaporated, and the vapor of the lubricant 8 passes through a filter 9 to remove dust such as lubricant and large particles of /Ia lubricant vapor, and only clean lubricant vapor circulates and fills the disk storage chamber 5. Each magnetic disk 2 rotating
It is deposited on the surface at an accelerated rate and can easily form a uniform lubricating film with a thickness of about 100 mm. The friction coefficient of the lubricant film formed in this way was 0.15 to 0.23, which was better than that of the magnetic disk surface before the lubricant film was formed, which was 0.45 or more. It has good lubricity.
尚、上記した実施例においては、前記ディスク収容室５
内の磁気ディスク２表面以外の各部分にも潤滑膜が被着
されるが、当該潤滑膜は極めて薄いので磁気ディスク装
置の機能を損なうことばない。又ベース部７に設けられ
た雰囲気流通穴７ａ内に潤滑剤蒸気発生用の潤滑剤を配
置した場合の例について説明したが、例えば前記ディス
ク収容室５の内壁面に潤滑剤を、予め塗布して置くよう
にしてもよく、これによっても同様の目的を達成するこ
とができる。Incidentally, in the above-mentioned embodiment, the disk storage chamber 5
A lubricating film is also deposited on each part other than the surface of the magnetic disk 2 inside, but the lubricating film is extremely thin and will not impair the functionality of the magnetic disk device. Furthermore, although an example has been described in which a lubricant for generating lubricant vapor is placed in the atmosphere circulation hole 7a provided in the base portion 7, for example, the inner wall surface of the disk storage chamber 5 may be coated with the lubricant in advance. The same purpose can also be achieved by leaving it in the same place.
更に本発明に係る磁気ディスク表面の潤滑膜形成法は、
上記実施例に限定するものではなく、例えばディスク収
容室５内に潤滑剤の蒸気を充満させるのに、別の潤滑剤
蒸気発生装置を用い、該装置の蒸気供給部１】を前記デ
ィスク収容室５の密封カバー５８を除いた受給口５ｂに
連結し、潤滑剤蒸気を供給するようにしてもよく、本方
法によっても磁気ディスク２の表面に所望とする膜厚の
潤滑膜を均一に形成することができる。尚、この実施例
によれば、潤滑膜の形成に要する時間を約１／３に短縮
できる優れた利点を有している。Furthermore, the method for forming a lubricant film on the surface of a magnetic disk according to the present invention includes:
The embodiment is not limited to the above embodiment, and for example, in order to fill the disk storage chamber 5 with lubricant vapor, another lubricant vapor generator may be used, and the steam supply section 1 of the device may be used to fill the disk storage chamber 5 with lubricant vapor. The lubricant vapor may be supplied by connecting the lubricant vapor to the receiving port 5b excluding the sealing cover 58 of No. 5, and this method also forms a lubricant film of a desired thickness uniformly on the surface of the magnetic disk 2. be able to. Incidentally, this embodiment has an excellent advantage in that the time required for forming a lubricating film can be reduced to about ⅓.
＋ｇｌ 発明の効果
以上の説明から明らかなように、本発明に係る磁気ディ
スク表面の潤滑膜形成法によれば、密封型磁気ディスク
装置のディスク収容室内に装着され、高速回転してなる
磁気ディスクの表面に対し、フィルタを通して充満させ
た潤滑剤蒸気を曝気して潤滑膜を形成するごとにより、
所望とする膜厚の潤滑膜を磁気ディスクの表面に均一に
、かつ低コス！・に形成することができる。又膜厚の制
御性も良いので超薄膜な潤１％膜を形成し得ることから
磁気ディスクの高記録密度化に寄与し得る等、実用工種
々の優れた効果を奏する。+gl Effects of the Invention As is clear from the above explanation, according to the method for forming a lubricating film on the surface of a magnetic disk according to the present invention, the magnetic disk that is mounted in the disk storage chamber of a sealed magnetic disk device and rotates at high speed is By aerating the lubricant vapor filled through the filter and forming a lubricant film on the surface,
Apply a lubricating film of the desired thickness uniformly to the surface of the magnetic disk at low cost!・Can be formed into Furthermore, since the film thickness can be easily controlled, an ultra-thin 1% moisture film can be formed, which can contribute to increasing the recording density of magnetic disks, resulting in various excellent effects in practical engineering.
図面は本発明に係る磁気ディスク表面の潤滑膜形成法の
一実施例を説明する要部概略断面図である。
図面において、■は磁気ディスクユニ７１−１２は磁気
ディスク、３ばスピンドルハウジング、３ａは中心通気
穴、３ｂは通気小孔、４は密封型磁気ディスク装置、５
はディスク収容室、５ａは密封カバー、５ｂは受給口、
６ば回転駆動機構、７はベース部、７ａは雰囲気流通穴
、８は潤滑剤、９はフィルタ、１１は７１′ｉ！Ｉ滑剤
蒸気発生装置の蒸気供給部を示す。
２０９The drawing is a schematic cross-sectional view of a main part for explaining an embodiment of a method for forming a lubricating film on a magnetic disk surface according to the present invention. In the drawings, ■ indicates a magnetic disk unit 71-12, 3 indicates a spindle housing, 3a indicates a center ventilation hole, 3b indicates a small ventilation hole, 4 indicates a sealed magnetic disk device, 5
is a disk storage chamber, 5a is a sealing cover, 5b is a receiving port,
6 is a rotational drive mechanism, 7 is a base part, 7a is an atmosphere circulation hole, 8 is a lubricant, 9 is a filter, 11 is 71'i! 1 shows the steam supply section of the lubricant steam generator. 209
Claims (1)
磁気ディスクを有する磁気ディスクユニ７１・を、磁気
ディスク装置の回転駆動機構に装着して回転させた状態
で、そのディスク収容室内に潤滑膜形成用の潤滑剤の蒸
気を充満させて、前記磁気ディスク表裏面に潤滑膜を被
着形成するようにしたことを特徴とする磁気ディスク表
面の？ｒＪＩｉ膜形成法。Moisture IF on the surface! When the magnetic disk unit 71, which has at least one magnetic disk on which an I film is to be formed, is attached to a rotation drive mechanism of a magnetic disk device and rotated, a lubricant for forming a lubricant film is applied inside the disk housing chamber. The surface of the magnetic disk is characterized in that the surface of the magnetic disk is filled with vapor of a lubricating agent to form a lubricating film on the front and back surfaces of the magnetic disk. rJIi film formation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58093556A JPS59218633A (en) | 1983-05-26 | 1983-05-26 | Formation of lubricating film on magnetic disk surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58093556A JPS59218633A (en) | 1983-05-26 | 1983-05-26 | Formation of lubricating film on magnetic disk surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59218633A true JPS59218633A (en) | 1984-12-08 |
Family
ID=14085520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58093556A Pending JPS59218633A (en) | 1983-05-26 | 1983-05-26 | Formation of lubricating film on magnetic disk surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59218633A (en) |
-
1983
- 1983-05-26 JP JP58093556A patent/JPS59218633A/en active Pending
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